I'm working on a shopping startup and need to get a basic recommender system built in the next few weeks. So far, I've implemented SlopeOne to determine the ord

I'm working on a shopping startup and need to get a basic recommender system built in the next few weeks. So far, I've implemented SlopeOne to determine the order of results every time a user searches. Is there any way to cache/memoize this repeated computation? Also, is SlopeOne the best way to go for this?